generated from Grigo/AndroidTemplate
added gistogramm
This commit is contained in:
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/** Polar rose and quality-vs-distance charts for TX/RX track compare. */
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(function (global) {
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'use strict';
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function bearingDeg(lat1, lon1, lat2, lon2) {
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const toRad = d => d * Math.PI / 180;
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const toDeg = r => r * 180 / Math.PI;
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const dLon = toRad(lon2 - lon1);
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const y = Math.sin(dLon) * Math.cos(toRad(lat2));
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const x = Math.cos(toRad(lat1)) * Math.sin(toRad(lat2))
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- Math.sin(toRad(lat1)) * Math.cos(toRad(lat2)) * Math.cos(dLon);
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return (toDeg(Math.atan2(y, x)) + 360) % 360;
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}
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function drawQualityRose(canvas, samples, qualityColor) {
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if (!canvas) return;
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const ctx = canvas.getContext('2d');
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const w = canvas.clientWidth || 140;
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const h = canvas.clientHeight || 140;
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if (canvas.width !== w) canvas.width = w;
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if (canvas.height !== h) canvas.height = h;
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ctx.fillStyle = '#0a0a14';
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ctx.fillRect(0, 0, w, h);
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const sectors = 16;
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const cx = w / 2;
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const cy = h / 2;
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const maxR = Math.min(w, h) * 0.38;
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if (!samples?.length) {
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ctx.fillStyle = '#888';
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ctx.font = '11px system-ui';
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ctx.textAlign = 'center';
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ctx.fillText('нет данных качества', cx, cy);
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return;
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}
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const bins = Array.from({ length: sectors }, () => ({ sum: 0, count: 0 }));
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const step = 360 / sectors;
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for (const s of samples) {
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const idx = Math.floor(((s.bearing % 360) + 360) % 360 / step) % sectors;
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bins[idx].sum += s.quality;
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bins[idx].count += 1;
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}
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const maxCount = Math.max(1, ...bins.map(b => b.count));
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ctx.strokeStyle = '#333';
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ctx.beginPath();
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ctx.arc(cx, cy, maxR, 0, Math.PI * 2);
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ctx.stroke();
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for (let i = 0; i < sectors; i++) {
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const start = (i * step - 90) * Math.PI / 180;
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const end = ((i + 1) * step - 90) * Math.PI / 180;
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const b = bins[i];
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if (!b.count) continue;
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const avgQ = b.sum / b.count;
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const r = maxR * (0.15 + 0.85 * (b.count / maxCount));
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const col = qualityColor ? qualityColor(avgQ) : '#888';
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ctx.beginPath();
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ctx.moveTo(cx, cy);
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ctx.arc(cx, cy, r, start, end);
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ctx.closePath();
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ctx.fillStyle = col;
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ctx.globalAlpha = 0.85;
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ctx.fill();
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ctx.globalAlpha = 1;
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ctx.strokeStyle = '#222';
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ctx.lineWidth = 0.5;
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ctx.stroke();
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}
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ctx.fillStyle = '#aaa';
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ctx.font = '9px system-ui';
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ctx.textAlign = 'center';
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ctx.fillText('N', cx, cy - maxR - 4);
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ctx.fillText('S', cx, cy + maxR + 10);
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ctx.textAlign = 'left';
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ctx.fillText('E', cx + maxR + 4, cy + 3);
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ctx.textAlign = 'right';
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ctx.fillText('W', cx - maxR - 4, cy + 3);
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ctx.fillStyle = '#888';
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ctx.font = '8px system-ui';
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ctx.textAlign = 'center';
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ctx.fillText('длина ∝ число точек', cx, h - 4);
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}
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function drawQualityDistChart(canvas, samples, qualityColor, highlightDist) {
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if (!canvas) return;
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const ctx = canvas.getContext('2d');
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const w = canvas.clientWidth || 280;
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const h = canvas.clientHeight || 140;
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if (canvas.width !== w) canvas.width = w;
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if (canvas.height !== h) canvas.height = h;
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ctx.fillStyle = '#0a0a14';
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ctx.fillRect(0, 0, w, h);
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if (!samples?.length) {
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ctx.fillStyle = '#888';
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ctx.font = '11px system-ui';
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ctx.fillText('нет данных качества', 12, h / 2);
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return;
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}
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const dists = samples.map(s => s.distM);
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const minD = Math.min(...dists);
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const maxD = Math.max(...dists);
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const span = Math.max(maxD - minD, 1);
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const binCount = Math.min(20, Math.max(5, Math.ceil(span / 10)));
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const binW = span / binCount;
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const bins = Array.from({ length: binCount }, (_, i) => ({
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min: minD + i * binW,
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max: minD + (i + 1) * binW,
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qualities: [],
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}));
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for (const s of samples) {
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let idx = Math.floor((s.distM - minD) / binW);
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if (idx >= binCount) idx = binCount - 1;
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if (idx < 0) idx = 0;
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bins[idx].qualities.push(s.quality);
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}
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const margin = { l: 36, r: 8, t: 16, b: 22 };
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const plotW = w - margin.l - margin.r;
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const plotH = h - margin.t - margin.b;
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ctx.strokeStyle = '#333';
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ctx.beginPath();
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ctx.moveTo(margin.l, margin.t);
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ctx.lineTo(margin.l, margin.t + plotH);
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ctx.lineTo(margin.l + plotW, margin.t + plotH);
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ctx.stroke();
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ctx.fillStyle = '#888';
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ctx.font = '9px system-ui';
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ctx.fillText('0%', 2, margin.t + plotH);
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ctx.fillText('100%', 2, margin.t + 8);
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ctx.fillText(`${Math.round(minD)}m`, margin.l, h - 2);
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ctx.fillText(`${Math.round(maxD)}m`, margin.l + plotW - 24, h - 2);
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ctx.fillStyle = '#ccc';
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ctx.font = '10px system-ui';
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ctx.fillText('RX Quality vs расстояние', margin.l, margin.t - 4);
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const barW = plotW / binCount * 0.75;
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bins.forEach((b, i) => {
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if (!b.qualities.length) return;
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const avg = b.qualities.reduce((a, v) => a + v, 0) / b.qualities.length;
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const cx = margin.l + (i + 0.5) / binCount * plotW;
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const barH = (avg / 100) * plotH;
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const x = cx - barW / 2;
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const y = margin.t + plotH - barH;
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const col = qualityColor ? qualityColor(avg) : '#888';
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const highlight = highlightDist != null
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&& highlightDist >= b.min && highlightDist < b.max;
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ctx.fillStyle = col;
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ctx.globalAlpha = highlight ? 1 : 0.75;
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ctx.fillRect(x, y, barW, barH);
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ctx.globalAlpha = 1;
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if (highlight) {
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ctx.strokeStyle = '#fff';
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ctx.lineWidth = 1.5;
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ctx.strokeRect(x, y, barW, barH);
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}
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});
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ctx.fillStyle = 'rgba(255,255,255,0.25)';
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samples.forEach(s => {
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const x = margin.l + ((s.distM - minD) / span) * plotW;
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const y = margin.t + plotH - (s.quality / 100) * plotH;
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ctx.beginPath();
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ctx.arc(x, y, 1.5, 0, Math.PI * 2);
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ctx.fill();
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});
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}
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global.QualityViz = {
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bearingDeg,
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drawQualityRose,
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drawQualityDistChart,
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};
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})(typeof window !== 'undefined' ? window : globalThis);
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